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set itemlist [concat \
    [glob -nocomplain -directory $dir -types hidden *] \
    [glob -nocomplain -directory $dir *]]
#usually . and .. aren't desired
set onlyfiles [lmap item [lsort -unique $itemlist] {
    expr {![file isdirectory $item] && $item ni {. ..}
        ? $item
        : [continue]
    }
}]
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<<categories>>Enter Category Here